[Problem] To provide a non resonant knock sensor such that internal insulation deterioration can be suppressed and manufacturing costs can be reduced. [Solution] A non resonant knock sensor (1) comprising a sensor body and a resin molded body (3) the sensor body comprising: a main fitting (9) including a fitting side tubular portion (13) and a fitting side flange portion (15); a piezoelectric element (17); a weight (19) disposed so as to sandwich the piezoelectric element against the fitting side flange portion; and a fastening portion (31) that has a third through hole (31h) through which the fitting side tubular portion passes and that fastens the weight by pushing the weight against the fitting side flange portion. The fastening portion has a flow path (31r) for the resin to flow to an internal space (20) between the fitting side tubular portion and the piezoelectric element. The flow path has at least one configuration from among a configuration of connecting to the third through hole and a configuration of being disposed on a body separate from the third through hole and a plurality of such flow paths are provided intermittently along the circumferential direction of the fastening portion.
展开▼
